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Product Description Package includes: 1pcs Specification Connector A Type: RJ9 Connector A Gender: Male Connector B Type: USB Connector B Gender: Female Connector A Pin Count: 4 Pin Wire Length: 30cm Applicaiton: 1. Office Communication: Connect USB devices to office telephone systems or headsets for seamless integration. 2. Technical Integration: Bridges USB and 4-Pin RJ9 connections in various tech applications. 3. Remote Work: Facilitates connections for remote work setups, ensuring efficient communication and device integration 4. Home Setup: Ideal for linking USB peripherals with home telephony or communication equipment. 5. Versatile Use: Supports a range of devices needing 4-Pin connections, enhancing compatibility.